Rice sand turns toxic waste into drinking water

[Cirio]

Galaki said:

Cirio said:
Hmm, maybe I'm not understanding this right, but what is the benefit from mixing rice with the sand? Is there a special property in rice that causes the toxic molecules to be attracted to it? If so, what is this property. Because if the regular filter paper isn't sufficient enough since it can't trap the smaller toxic molecules, couldn't they simply make the "gaps" in the filter paper smaller by filling the gaps with the carbon oxide mentioned above? I'm a noob when it comes to rice chemistry lol.

According to what I read, it seems the advantage is in durability, as in, last many more uses.

Ah, that makes sense if they're trying to use this as a full-scale filtering method. Otherwise however, the carbon oxide coated filted paper will naturally be more durable than regular filter paper because it has more attraction between its inner molecules. I really wonder how well this method works and whether or not it's affordable to use in a wider scale. There can be many benefits from this.